is taking place in newtown, connecticut. this is at newtown high school. hundreds are in attendance including president obama. he is expected to speak shortly. cbs will carry the president's remarks live as they happen. >>> chilling new details about -- are emerging about the deadly rampage in connecticut that left 28 people dead including 20 children. sources say the shooter, adam lanza, shot his mother four times in the head, apparently as she lay sleeping. computers in the home were found smashed. lanza then drove it to the school and forced his way in by shooting out a window. within minutes he shot and killed the children and six adults, and then as police closed in, lanza shot himself. in newtown, it was a day to mourn their dead at church services. cbs is in newtown where president obama is among the mourners. >> reporter: hundreds of mourners at a vigil in new town gave first respond ears standing ovation. president obama is there to help this community deal with the tragedy. people have been stopping at town memorials all day. while others attende